AD 95-13-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Agusta S.p.A. | A109A | Airworthiness Directives; Costruzioni Aeronautiche Giovanni Agusta S.p.A. Model A109A, A109AII, and A109C Helicopters |
| aircraft | Agusta S.p.A. | A109A II | Airworthiness Directives; Costruzioni Aeronautiche Giovanni Agusta S.p.A. Model A109A, A109AII, and A109C Helicopters |
| aircraft | Agusta S.p.A. | A109C | Airworthiness Directives; Costruzioni Aeronautiche Giovanni Agusta S.p.A. Model A109A, A109AII, and A109C Helicopters |
Unsafe Condition
Failure of the vertical fin attachment caused by cracks in the tail boom vertical fin rear spar attachment area, leading to subsequent loss of control of the helicopter.
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Required Actions
Within the next 100 hours time-in-service, modify the tail boom vertical fin and perform a visual inspection for cracks in the vertical fin rear spar attachment area. Thereafter, inspect every 300 hours time-in-service. Use specific modification kits and instructions from Agusta Bollettino Tecnico No. 109-96.
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Compliance Time
Within the next 100 hours time-in-service
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Affected Aircraft
Agusta S.p.A. Model A109A, A109AII, and A109C helicopters, serial number 7670 and lower, excluding specific serial numbers 7630, 7633, 7645, 7651, 7654, 7663, 7665, 7666, 7667, 7668, and 7669.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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